Add touch events to the protocol, the stub layer, and to the client plugin.

remoting/protocol/input_event_tracker.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_
 #define REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_
 
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
  public:
   explicit InputEventTracker(protocol::InputStub* input_stub);
   ~InputEventTracker() override;
 
   // Returns true if the key with the specified USB code is currently pressed.
   bool IsKeyPressed(uint32 usb_keycode) const;
 
   // Returns the count of keys currently pressed.
   int PressedKeyCount() const;
 
-  // Dispatch release events for all currently-pressed keys and mouse buttons
-  // to the InputStub.
+  // Dispatch release events for all currently-pressed keys, mouse buttons, and
+  // touch points to the InputStub.
   void ReleaseAll();
 
   // InputStub interface.
   void InjectKeyEvent(const KeyEvent& event) override;
   void InjectTextEvent(const TextEvent& event) override;
   void InjectMouseEvent(const MouseEvent& event) override;
+  void InjectTouchEvent(const TouchEvent& event) override;
 
  private:
   protocol::InputStub* input_stub_;
 
   std::set<uint32> pressed_keys_;
 
   webrtc::DesktopVector mouse_pos_;
   uint32 mouse_button_state_;
 
+  std::set<uint32> touch_point_ids_;
+
   DISALLOW_COPY_AND_ASSIGN(InputEventTracker);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_